The “mock” trade show that ended this week’s four-and-a-half-day SMART Girls session proved to be the real deal, indeed, offering display after display by young women who showed as much heart as they did skill. The rising ninth- to 11th-graders from across Pennsylvania used three-dimensional technology to create projects on behalf of causes near and dear to them, then presented their finished work to the Penn College community Thursday morning. Chosen by attendees as the top presenters were First Place: Monarch Butterfly (Tori May, McCartney Register and Rebecca Piergallini, Keystone Central School District); Second Place: BeeKeeper (Hanna Yu, State College Area School District, and Carlisle’s Anna Lippert and Grace Echevarria); Third Place: Polar Bears (Lauren Clay and Violet Burbank, Carlisle Area School District, and Mikhayla Browne, Midd-West Area School District).